To Drink, or Not To Drink

"Dr. Mark Sobsey, a professor of public health at the University of North Carolina-Chapel Hill, has developed a cheap and simple test to determine how many E. coli bacteria live in a given water sample. His Compartment Bag Test (CBT), which looks like a plastic reclosable bag with five internal compartments, doesn’t require fancy lab equipment or trained technicians. It’s designed to be used by anyone anywhere."

Read more at QUEST.

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